The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 06, 2000
Filed:
Aug. 15, 1997
Jean Pierre Renaudin, Encinitas, CA (US);
Philippe Renard, Carlsbad, CA (US);
Taylor Made Golf Company Inc., Carlsbad, CA (US);
Abstract
An improved apparatus for manufacturing a reinforced golf club shaft having a complex shape. An inflatable bladder is positioned over a mandrel having a simple shape. Layers of fiber material are then rolled over inflatable bladder to produce a sub-assembly. The sub-assembly is placed in a mold defining a negative of the shape of the final shaft that is to be produced. The impression may have enlarged or narrowed regions for producing irregularities in the shape of the shaft. The bladder is expanded within the mold so that the composite structure is radially displaced and compressed between the bladder and the mold. The inflatable bladder has a variable thickness that conforms to the shape of the impression so that the composite structure undergoes a uniform and minimum displacement along its entire length, which improves the mechanical properties of the final shaft.